ATTEMPTS ARE MADE TO CLARIFY MEASURING DISCREPANCIES IN THE STUDY OF TWO D LINES RADIATED INTO PURE SODIUM VAPOR, A SODIUM VAPOR AIR MIXTURE, AND A SODIUM POTASSIUM VAPOR MIXTURE. RESULTS SHOW THAT THE INTENSITY RATIOS OF THE TWO RESONANCE LINES IN FLUORESCENT LIGHT IS MARKEDLY INFLUENCED BY THE RADIATION DIFFUSION AND THAT THE MEASURED VALUES THEREFORE DEPEND ON THE GEOMETRY OF THE SYSTEM. IF THIS IS TAKEN INTO ACCOUNT, THE APPARENT CONTRADICTION BETWEEN OTHER EXPERIMENTAL STUDIES CAN BE EXPLAINED.

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